Update 17:54 UTC: The ultimate explanatory earthquake poster from this earthquake comes from geologist Dr. Jay Patton. Click on the image or here to be linked to his site. The poster contains lots of important scientific information and can be viewed in full format in his site. Dr Jay Patton is gifted with the ability to translate hard to understand scientific material into easy, everyday language (through texts and images).

Update 08:48 UTC: In addition to the destroyed homes and damaged infrastructure and power outages, the hiking trails on Mount Rinjani have been closed due to land slides. Those hiking trails are very popular with tourists, especially in the morning when the quake struck. It is not known yet if any hikers were caught in the land slides.

Jalan Raya Balan, the only highway around the north end of Lombok where the quake was, has been rendered impassible in several places.

Update 23:02 UTC: This earthquake will normally NOT generate Tsunami waves as the Magnitude is not powerful enough (besides a couple of exceptions, the Magnitude needs to be at least M7 of higher). Strong currents along nearby shores are always a possibility and people should be cautious about them. The image below is confirming NO tsunami danger

• Sanur, Bali – Holidaying in a hotel in Sanur. About 6.50am, woken by shaking, and rattling and banging of room furniture. Duration about 1 minute. Enough concern to jump out of bed and leave the room. Ripples on the hotel pool. Large painting now hanging awry. No aftershocks noticed. Other hotel guests generally did not register that it was a quake.